Nut-wrench.



'ff' I ED sures PATEN OFFICE. ,1

GEORGE P SPBAGUE, OF ARLINGTON, MASSACHUSETTS.

NUT-WRENCH.

Specification of Letters Patent.

Patented Sept. 15, 1908.

Application filed September 9, 1907. Serial No. 391,850.

' To all whom it may concern:

Be it known that I, GI-IQRGE P. SPRAGUE, a citizen of the United States, residing at the town of Arlington, in the count of Middlesex and State of Massachusetts, iave invented new and useful Improvements in Nut- Wrenches, of which the following is a speci fication.

This invention relates generally to wrenches having. a handle-bar, carrying at one end a head having a socket-member suitable to engage or interlock with a nut, bolt head, etc. and so engaged to secure the turning of the nut, etc., by rotating said handle; and more especially it relates to that class of such wrenches as have said head hung upon the handle-bar, for it and the handle to be laced axially as to each other in varying reations, that is, so as to have both axes either in a line coincident with, or in lines at an angle to each other, according as may be required in the use of the wrench, and in whatever position the two, handle-bar and sockethead, may be to secure the turn of the nut, etc., as desired,by rotating the handle-ban One of the objects of this invention, is to construct the socket-member and the head to which it is to be attached so that the socketmember can be attached and detached at pleasure and attached be so held as to insure its turning as the handle-bar and head are retated, and another object is to rovide the wrench with improved means or securing the rotation of the socket-n1ember as the handle bar is rotated. These objects are carried out all as hereinafter described and stated in the claim.

In the drawings, forming part of this specification, Fi ures 1 and 2 are views at adja cent sides of the wrench, some parts in Fig. 1, being broken away. Fig. 3 is a face view, in detail, as will hereinafter appear. Fig. 4 is a section, on dotted line -il of Fig. 2. Fig. 5 is a cross section, on dotted line 55 of Fig.

2. Fig. 6 is a face view of the socket-n1em-.

ber. Figs. -7 and 8 are detached detail views as'hereinafter appear.

In the drawings, A is the handle-bar having, at one end, a cross-bar B, and said end 50 is adapted for said cross-bar to be entered therein and removed therefrom in two different directions at right angles to each other, all as well known. The handle-bar A, at its opposite end, is hung on a cross-pin C, secured at its opposite ends in ear-pieces D of a head E and this pin carries free turning ferrules F, confining the handle-bar A against lateral movement on it, said cross-pin C.

The head E is chambered and this chamber G is closed or covered by a detachable cap- )late H, and in it is located the socket-memer J arranged for free rotation therein. This socket-member J under the cap-plate H has radially running crown ratchet-teeth K,

severally ending at a central opening L,

which is common to both said cap-plate H and said socket-member J, and furthermore the socket-member has a tubular-extension M, which is free to turn within a central opening N of the head E, at its end op osite to that of the cap-plate H, and this tuliiular-extension has a socket O, shaped to be engaged or interlocked with a nut, bolt-head, etc.

P is a pawl-pin carriedby and capable of I rotation 1n the cap-plate. This pawl-pin enters by its working-end Q between the teeth K of the socket-member, and thus when the head is turned in one direction it I will, by working against one of said teeth, rotate the socket-member J and so turn the nut, etc., with which it, the socket-member,

may be engaged, and constitutes the feature of this invention, in connection with the class of wrenches described.

It is plain that the socket-member is free to be removed and replaced at pleasure, and

another having a different sized or shaped socket substituted for it. 7

Having thus described my invention what I claim and desire to secure by Letters Patent is,

A wrench for nuts,v bolt-heads, etc., composed of a handle-bar, a head hung on one end of said handle-bar, so as to be placed axially coincident with, or at an an le thereto, and a socket member suitable by its socket to grasp a nut, bolt-head, etc., and arranged to turn on said head, and havi 0 an axial or central opening, and crown rate 1et teeth in a plane at right angles to said axial- 100 opening, in combination .with a pawl-pin car- 'ried by said head and in position and arranged to engage and work on said crownmthet-teet-h of said socket-11191111391, sub- 5 stantially as described and for the purposes specified. In W1tness where0f,- I have hereuntoset my hand. in the presence of two subse w tnesses.

I \Vitnesses:

' Y ALBERT W. BROWN,

CHARLES R. BROWN.

GEO? P. SPR'AG' V 

